工程设计学报2011，Vol.18Issue(3)：214-217,227,5.DOI:10.3785/j.issn.1006-754X.2011.03.011
基于主动超声的轴流水泵空化监测方法研究
Research on axial flow pump cavitation monitoring method based on the active ultrasonic detection
陈笑然 1章林柯 2阎兆立 1陈杰 1程晓斌1
作者信息
- 1. 中国科学院噪声与振动重点实验室,声学研究所,北京100190
- 2. 海军工程大学振动与噪声研究所,湖北武汉430033
- 折叠
摘要
Abstract
Cavitation phenomena is one of the principal factors which compromise the life-span and performance of the fluid machinery. A novel method named active ultrasonic detection was proposed, which emitted a high frequency carrier wave to the area round cavitation district with transmission method. The fluid motion would exert an influence on the high frequency carrier wave, which induced that the fluid field information was modulated on the ultrasonic carrier wave, so the fluid field information could be gained through the demodulation of the ultrasonic carrier signal. Based on the experimental dataset from shaft flow pump in different flow rates,combining high speed photography verifying method, a pattern classifier based on support vector machine was set up to achive the active ultrasonic detection of the pump cavitation. This method can detect the new born cavitation accurately, and supply the relevant alarm, to avoid the further development of cavitation.关键词
空化/泵/超声/支持向量机Key words
cavitation/ pump/ ultrasound/ support vector machine分类
信息技术与安全科学引用本文复制引用
陈笑然,章林柯,阎兆立,陈杰,程晓斌..基于主动超声的轴流水泵空化监测方法研究[J].工程设计学报,2011,18(3):214-217,227,5.
